/* ========================================
 * 内容栏目页通用样式
 * 文件路径：css/pages/content-page.css
 * ======================================== */

.main-content {
  padding-top: 80px;
  min-height: 100vh;
  background: var(--color-bg);
}

/* 页面头部横幅 */
.page-banner {
  background: linear-gradient(135deg, #f0f7f4 0%, #e8f5e9 50%, #f5f5f5 100%);
  color: var(--color-text);
  padding: 60px 0;
  text-align: center;
  border-bottom: 1px solid rgba(45, 80, 22, 0.1);
}

.page-banner__title {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-primary);
}

.page-banner__subtitle {
  font-size: 18px;
  color: var(--color-text-secondary);
}

/* 内容区域 */
.content-section {
  padding: 48px 0;
}

.content-section--gray {
  background: var(--color-bg-card);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section-header {
  text-align: center;
  margin-bottom: 40px;
}

.section-title {
  font-size: 28px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--color-text-secondary);
}

/* 内容网格 */
.content-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  align-items: center;
}

.content-grid--reverse {
  direction: rtl;
}

.content-grid--reverse > * {
  direction: ltr;
}

.content-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.content-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.3s ease;
}

.content-image:hover img {
  transform: scale(1.05);
}

.content-text {
  padding: 20px 0;
}

.content-text h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--color-text);
}

.content-text p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.content-text ul {
  margin: 0 0 16px 24px;
  list-style: disc;
}

.content-text li {
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}

.content-text .btn {
  margin-top: 8px;
}

/* 特色卡片 */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.feature-card__icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.feature-card__title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text);
}

.feature-card__desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

/* 图片画廊 */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.gallery-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  position: relative;
}

.gallery-item img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.gallery-item:hover img {
  transform: scale(1.1);
}

.gallery-item__overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
  color: #fff;
  padding: 24px 16px 16px;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.gallery-item:hover .gallery-item__overlay {
  transform: translateY(0);
}

.gallery-item__title {
  font-size: 16px;
  font-weight: 500;
}

/* 时间线 */
.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-primary);
}

.timeline-item {
  position: relative;
  margin-bottom: 32px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -33px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-primary);
}

.timeline-item__date {
  font-size: 14px;
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: 8px;
}

.timeline-item__title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
}

.timeline-item__desc {
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

/* 统计数字 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item {
  padding: 24px;
}

.stat-item__number {
  font-size: 48px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-item__label {
  font-size: 16px;
  color: var(--color-text-secondary);
}

/* 文章列表 */
.article-list {
  display: grid;
  gap: 24px;
}

.article-item {
  display: flex;
  gap: 24px;
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.article-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.article-item__image {
  width: 280px;
  height: 180px;
  object-fit: cover;
  flex-shrink: 0;
}

.article-item__content {
  padding: 20px;
  flex: 1;
}

.article-item__category {
  display: inline-block;
  padding: 4px 12px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
  margin-bottom: 12px;
}

.article-item__title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.article-item__title a {
  color: var(--color-text);
  text-decoration: none;
}

.article-item__title a:hover {
  color: var(--color-primary);
}

.article-item__excerpt {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-item__meta {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* 响应式 */
@media (max-width: 768px) {
  .page-banner {
    padding: 40px 0;
  }

  .page-banner__title {
    font-size: 28px;
  }

  .content-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .content-grid--reverse {
    direction: ltr;
  }

  .feature-grid {
    grid-template-columns: 1fr 1fr;
  }

  .feature-card {
    padding: var(--spacing-xl) var(--spacing-lg);
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .gallery-item img {
    height: 180px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat-item__number {
    font-size: 36px;
  }

  .article-item {
    flex-direction: column;
  }

  .article-item__image {
    width: 100%;
    height: 200px;
  }

  .timeline {
    padding-left: 28px;
  }
}

@media (max-width: 480px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .gallery-item img {
    height: 200px;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

  .stat-item__number {
    font-size: 28px;
  }

  .content-text h3 {
    font-size: 20px;
  }

  .feature-card__icon {
    font-size: 36px;
  }

  .timeline {
    padding-left: 20px;
  }
}